A sixth person, Matthew John Grabowski, 31, of Kimball Township, pleaded guilty March 2 to assault bodily harm less than murder, attempted conspiracy to commit torture and attempted conspiracy to commit unlawful imprisonment.

All of the defendants appeared in front of Judge Daniel Kelly.

Sentencing for Grabowski, Eifert and Elizabeth Anne Perdue is scheduled for 1:45 p.m. April 16; sentencing for Justin Harold-Lee Perdue is set for 9 a.m. April 20; Coleman Wayne Suratt and Frankie Lee Suratt will be sentenced at 9 a.m. April 27.

The alleged victim, Jeremy Tallmadge of Port Huron, had testified in District Court that the defendants had held him in October 2017 at a home in Hewitt Road in Greenwood Township where he was beaten and threatened with a shotgun.

Contact Bob Gross at (810) 989-6263 or rgross@gannett.com. Follow him on Twitter @RobertGross477.